Internal Module Dependancy

I have a couple questions on internal modules, specifically the newer ones.
-If the Power system is broken, does power electronics/hydraulic pump get disabled as well? I would think it should but it doesn’t list that as one of the things dependent on the power system as something that breaks if power system is disabled.
-If power system is broken, does electronic equipment also fail? Again, its not listed as a dependent unlike radar.
-If APU/engine is functional but power system is broken, are modules dependent on the power system still usable?